这段代码的运行结果是什么:#include <stdio.h> #include <stdlib.h> #include <pthread.h> #define NUM_THREADS 4 #define ARRAY_SIZE 100 #define BUCKET_SIZE 10 int array[ARRAY_SIZE]; int histogram[ARRAY_SIZE / BUCKET_SIZE]; pthread_mutex_t mutex; pthread_mutex_t print_mutex; void* histogram_thread(void* arg) { int tid = *(int*)arg; int start = tid * (ARRAY_SIZE / NUM_THREADS); int end = start + (ARRAY_SIZE / NUM_THREADS); for (int i = start; i < end; i++) { int bucket = array[i] / BUCKET_SIZE; pthread_mutex_lock(&mutex); histogram[bucket]++; pthread_mutex_unlock(&mutex); } pthread_exit(NULL); } int main() { pthread_t threads[NUM_THREADS]; int thread_ids[NUM_THREADS]; // Initialize array with random values for (int i = 0; i < ARRAY_SIZE; i++) { array[i] = rand() % ARRAY_SIZE; } pthread_mutex_init(&mutex, NULL); pthread_mutex_init(&print_mutex, NULL); // Create threads for (int i = 0; i < NUM_THREADS; i++) { thread_ids[i] = i; pthread_create(&threads[i], NULL, histogram_thread, &thread_ids[i]); } // Wait for threads to finish for (int i = 0; i < NUM_THREADS; i++) { pthread_join(threads[i], NULL); } // Print histogram pthread_mutex_lock(&print_mutex); for (int i = 0; i < ARRAY_SIZE / BUCKET_SIZE; i++) { printf("Bucket %d: %d\n", i, histogram[i]); } pthread_mutex_unlock(&print_mutex); pthread_mutex_destroy(&mutex); pthread_mutex_destroy(&print_mutex); return 0; }
时间: 2024-04-11 22:28:10 浏览: 104
syn端口扫描.txt
这段代码的运行结果是将数组array中的元素按照区间进行划分,统计每个区间中元素的个数,并输出结果。
示例运行结果可能如下所示:
```
Bucket 0: 11
Bucket 1: 8
Bucket 2: 6
Bucket 3: 10
Bucket 4: 7
Bucket 5: 5
Bucket 6: 14
Bucket 7: 8
Bucket 8: 11
Bucket 9: 10
```
每一行表示一个区间的编号(Bucket)和该区间的元素个数。
由于数组array是随机生成的,所以每次运行结果都可能不同。
希望能帮到您!如有其他问题,请随时提问。
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